I have uploaded every Goosebumps episode in full uncompressed 480p DVD quality on The Internet Archive.

Its around 83 GB in size. This is to my knowledge the best quality of the show you can find.

https://archive.org/details/goosebumpsdvdremux

Edit: This is also im pretty sure the same as this one https://archive.org/details/vts-02-1_20210505_1318/Goosebumps+1995+576p+ENG+MPEG2+AC3+2+0-YuukiEncodes/GOOSEBUMPS_S1_D1/VIDEO_TS/VTS_02_1.VOB